Police point to lack of sleep in the Tracy Morgan crash

Police say they don't believe alcohol played a role in the accident that left comedian Tracy Morgan in critical condition and killed his friend. Authorities say the tractor trailer driver who is charged in the crash did not sleep for more than 24 hours before the accident. Morgan's publicist says he is showing signs of improvement, but will likely be hospitalized for several weeks. Randi Kaye takes a closer look at the deadly crash.